This lake is also a wildlife paradise, with more than 100 important indigenous species such as the red snook fish (Petenia splendida), crocodiles (Crocodylus moreletii and Crocodylus acutus), jaguars (Panthera onca), Pumas (Puma concolor), White-tailed deer(Odocoileus virginianus), red brocket (Mazana americana), and several bird species, including parrots, toucans, and macaws. On its northeast shore is the Cerro Cahui Protected Biotope, a natural reserve for butterflies is a 1,600-acre (6.5 km2) reserve is home to toucans, spider monkeys (Ateles geoffroyi), howler monkeys (Alouatta palliata,Alouatta pigra), and many other rain forest species